we are tyco integrated security. and we are sharper. ♪ john: we are back with your questions for my guests, kathleen porter-magee. the porter institute which supports national education standards. lindsey burke of the heritage foundation who opposes them, and the controversial founder of the high-performing american indian charter schools, ben chavis. first from my facebook page. barbara says, would privatizing education using vouchers systems work? >> we know beyond a shadow of a doubthat school choice works. we have a robust body of empirical evidence. you to washington d.c., one of the worst performing schools in the country, kids reive a voucher have a 91 percent graduation rate compared to their peers in the public system john: why don't we have vouchers everywhere? >> we already do. touches of the university system. you can go to georgetown university which is a private school. it's about chair. the best universities in the world. us because we have a voucher system. stall financial aid. universities, the pub